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"This report contains recommendations reflecting the views of the ASA Technical Panel on the Census Undercount concerning [U.S.] Census Bureau procedures and plans in the fall of 1982." The report consists of technical statistical advice on measurement and estimation problems. A response by Barbara A. Bailar, reflecting the views of the U.S. Census Bureau, is also included (pp. 257-60).
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Explore the source record for details and available documents.
Explore the source record for details and available documents.
Explore the source record for details and available documents.
"Between 1 and 15 of August [1997], Mozambique had its second country-wide population census. This briefing will outline how the census ran--an operation of considerable scale in an extremely poor and war-damaged country--and will also raise some broader questions which relate the census to Mozambique's contemporary politics."
"The paper develops a technique for identifying the cohorts that initiated what in the 1950s was designated the population explosion. A numerical example is given for Indonesia, but essentially the same picture appears for many other countries, and for the aggregate of the world. The intercohort increase can be estimated for each age using two successive censuses; the method here developed gives very nearly the same increase whatever age is used for the estimate." (SUMMARY IN FRE)
"In 1970, as in previous decades, the U.S. Bureau of the Census's household enumeration began with a lead question as to who was the ¿head of household'. With the resurgence of feminism, this concept was challenged as an ambiguous concept which implied an authority structure imputed by the Bureau but not measured, and offensive to many people. This paper tells the story of successful feminist mobilization in the 1970s that led to the removal of this concept from the U.S. decennial censuses beginning with 1980."
"This paper reviews the changing way in which census geography has been treated with the increasing automation of census data processing. A four-stage model of modern census geography development is presented. In the context of this model, current practice is reviewed, and new opportunities for automated census geography design presented, culminating in a current prototype for the separation of purpose-designed data collection and output geographies. The narrative is presented primarily from a British perspective, but focuses on internationally relevant issues such as the implementation of census geography design, and the influence of census output geography on data analysis."
OBJECTIVE: The National Study on Psychiatric Morbidity in New Zealand Prisons identified undiagnosed mental illness and unmet treatment needs for mentally disordered offenders. As approximately 50% of prisoners are of Maori and 8.3% Pacific Island ethnicity, we analyzed the data to determine if there were any differences in the rates of major mental disorders between ethnic groups. METHOD: A census of all female prisoners, all remand male prisoners and an 18% random sample of the sentenced male prisoners were interviewed employing the diagnostic interview for mental illness (CIDI-A), screening diagnostic interview for relevant personality disorders (PDQ) and suicide screening questions. Self-identified ethnicity was recorded. Ethnic groups were compared for sociodemographic variables, morbidity for mental disorder, treatment experience and suicidality. RESULTS: The ethnic groups were largely similar in age and current prevalence for mental disorders, although there was some evidence of differing sociodemographic factors, especially younger age among the Maori prisoners. Maori report fewer suicidal thoughts, but acted suicidally at the same rate as non-Maori. Treatment for mental disorder was less common among Maori and Pacific Island prisoners than others, both in prison and in the community. CONCLUSION: Criminogenic factors present in the developmental histories of prisoners might also increase the risk of mental disorders. Ethnic groups were not different in the rate at which they manifest mental disorders in the face of such factors. Younger prisoners were disproportionately more likely to be of Maori or Pacific Island ethnicity. Both prior to and after entry to prison, services must improve responsiveness to Maori and Pacific Island people.
OBJECTIVE: One-fourth of all deaths in the United States occur after age 85 (646,900 of 2,392,619 total deaths in 1999). By 2050 (assuming 1999 age-specific death rates), 47.4% of all deaths will occur after age 85 (2,994,935 of 6,314,725 total deaths). As we age, heart disease becomes increasingly important relative to cancer as a cause of death. Thus, as age at death is postponed, future populations will be dying of different age-specific causes. The study objective was to project the effect of population aging on future proportionate mortality rates for heart disease and cancer. METHODS: Using Census Bureau population projections and assuming 1999 age-specific death rates, the authors calculated the number of deaths from heart disease, cancer, and all causes in 10-year intervals from 2000 to 2050. RESULT: During this period, the total number of deaths for heart disease and cancer will increase 2.8-fold and 2.3-fold, respectively. The proportionate mortality rate for heart disease will increase from 30% to 33%, and the rate for cancer will drop from 23% to 20%. DISCUSSION: Changes in age distribution between now and 2050 will cause heart disease to increase its dominance over all other causes of death, and proportionate mortality for cancer will decline.
BACKGROUND: Analysis of socioeconomic status (SES), defined on the basis of geographical area, will always be subject to misclassification of individuals. We studied the relationship between SES and selected health-related measures when SES was defined firstly on the basis of postcode and secondly on the basis of the smaller spatial area of collector's district (CD). METHOD: A Census population of 1.4 million was used to investigate the misclassification of individuals to SES group using postcode as opposed to CD. A field survey of 1000 respondents and a mortality register of 1756 deaths were used to compare the relationship between SES and certain outcome variables, when SES group was assigned using postcode and CD. Misclassification probability matrices were used to try to adjust the postcode-based results to approximate CD-based results. RESULTS: The Census data showed that nearly 50% of residents were misclassified into SES groups by the postcode-based system compared with a CD-based system. In comparing the most socially disadvantaged group with the least disadvantaged group, the postcode analysis underestimated the absolute effects of SES by 58% for the increased prevalence of smoking, by 19% for the reduced prevalence of participation in junior sporting clubs and by 13% for the increased mortality rate at ages 0-64 years. Adjustment of postcode-based results using misclassification matrices proved fruitless due to differential misclassification and technical difficulties. CONCLUSIONS: Misclassification of individuals to SES groups on the basis of postcode has caused an underestimation of the true relationship between SES and health-related measures. A reduction of this misclassification by using smaller spatial areas, such as CD or census enumeration districts, will provide improved validity in estimating the true relationship.
BACKGROUND: Many European countries have in recent decades reported growing socioeconomic differentials in mortality. While these trends have usually paralleled high unemployment and increasing income disparities, Sweden had low unemployment and narrowing income differences. This study describes trends, 1961-1990, in total and cardiovascular mortality among men, 45-69 years of age, in major occupational classes in Sweden. METHODS: From census data four cohorts were created from those enumerated in 1960, 1970, 1980 and 1985. Through record linkage with the Swedish cause of death registry the mortality in each cohort was followed for 5-10 years. Age-standardized mortality trends 1961-1990 were calculated for occupational groups, categorized according to sector of the economy. RESULTS: The increase in mortality among middle-aged men in Sweden 1965-1980 was mainly a result of increasing cardiovascular mortality among industrial workers and farmers. In the 1980s the trend for these groups changed into a last decrease in mortality similar to that for non-manual occupations for the whole period. Consequently the rate ratio for industrial workers in comparison with men having a professional/managerial type of occupation increased from 0.98 to 1.43. The slowest decrease is now found among unqualified occupations in services and transportation. CONCLUSIONS: While Sweden, during the period studied, had narrowing income differentials and low unemployment this result points to the importance of working conditions in understanding trends and distribution of male adult mortality.
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OBJECTIVE: The objective of this study was to test the association of the personality traits of neuroticism and extraversion with risk of death in old age. METHODS: A census was taken of a geographically defined urban community in Chicago, and those aged 65 years or older were invited to participate in an in-home interview; 6158 (79% of those eligible) did so. The interview included brief measures of neuroticism and extraversion, medical history, and questions about current participation in cognitive, social, and physical activities. Vital status was subsequently monitored. The association of each trait with risk of death was examined in a series of accelerated failure-time models that controlled for age, sex, race, and education. RESULTS: During a mean of more than 6 years of observation, 2430 persons (39.5%) died. A high level of neuroticism (score = 27; 90th percentile) was associated with a 33% increase in risk of death compared with a low level of neuroticism (score = 9; 10th percentile). A high level of extraversion (score = 33; 90th percentile) was associated with a 21% decrease in risk of death compared with a low level (score = 18; 10th percentile). Adjustment for medical conditions and health-related variables did not substantially affect results, but adjusting for baseline levels of cognitive, social, and physical activity reduced the association of both traits with mortality. CONCLUSIONS: The results suggest that higher extraversion and lower neuroticism are associated with reduced risk of mortality in old age and that these associations are mediated in part by personality-related patterns of cognitive, social, and physical activity.
OBJECTIVES: To characterize availability of fever and malaria medicines within the retail sector in rural Tanzania, assess the likely public health implications, and identify opportunities for policy interventions to increase the coverage of effective treatment. METHODS: A census of retailers selling drugs was undertaken in the areas under demographic surveillance in four Tanzanian districts, using a structured questionnaire. RESULTS: Drugs were stocked by two types of retailer: a large number of general retailers (n = 675) and a relatively small number of drug shops (n = 43). Almost all outlets stocked antipyretics/painkillers. One-third of general retailers stocking drugs had antimalarials, usually chloroquine alone. Almost all drug shops stocked antimalarials (98%): nearly all had chloroquine, 42% stocked quinine, 37% sulphadoxine-pyrimethamine and 30% amodiaquine. A large number of antimalarial brands were available. Population ratios indicate the relative accessibility of retail drug providers compared with health facilities. Drug shop staff generally travelled long distances to buy from drugs wholesalers or pharmacies. General retailers bought mainly from local general wholesalers, with a few general wholesalers accounting for a high proportion of all sources cited. CONCLUSIONS: Drugs were widely available from a large number of retail outlets. Potential negative implications include provision of ineffective drugs, confusion over brand names, uncontrolled use of antimalarials, and the availability of components of potential combination therapy regimens as monotherapies. On the other hand, this active and highly accessible retail market provides opportunities for improving the coverage of effective antimalarial treatment. Interventions targeted at all drug retailers are likely to be costly to deliver and difficult to sustain, but two promising points for targeted intervention are drug shops and selected general wholesalers. Retail quality may also be improved through consumer education, and modification of the chemical quality, packaging and price of products entering the retail distribution chain.
OBJECTIVE: To evaluate the impact of repeated community-wide mass health examinations on cardiovascular mortality and hospital morbidity trends in Busselton. METHOD: Population census, hospital admission and death data were used to calculate and compare cardiovascular mortality rates from 1965 to 1998 and hospital morbidity rates from 1971 to 1998 in Busselton residents aged 40 to 84 years with the remainder of the south-west region of Western Australia. RESULTS: Among men aged 40-69 years, the calendar year trends in standardised cardiovascular mortality and morbidity ratios were relatively flat and non-significant. Among women aged 40-69 years, the mortality ratio declined significantly up to 1989 (p = 0.03) but not over the whole period (p = 0.12), and the downward trend in the morbidity ratio did not reach statistical significance (p = 0.21). Among men aged 70-84 years, both the mortality and morbidity ratios rose significantly over time, whereas among women aged 70-84 years the mortality ratios showed a flat trend and the morbidity ratios a rising trend. These increasing trends were opposite to what was expected if the surveys had a beneficial impact. CONCLUSION: This analysis of trends, while failing to demonstrate a clear benefit of repeated mass health screenings on cardiovascular event rates, also highlights the difficulties in evaluating the longer-term impact on event rates of such programs and suggests that negative conclusions should be made with caution.
"The analyses in this research were intended to demonstrate the advantages of utilizing microdata from [U.S.] census sources for examining migration status and related household and family structures. By asking for the self-identification of ethnic origin, in this case Spanish/Hispanic origin, a census is able to trace not only first generation migrants by different durations of residence, but also later generations. The flexibility afforded by microdata tape files enables [the authors] to further examine multilevel effects of migration and family patterns. In this present example, the widespread nature of family instability among persons of Puerto Rican origin in the New York/New Jersey area has been noted." (summary in FRE, SPA)